10FT Double Barn Door Hardware Kit, Sliding Barn Door Track, Heavy Duty, Smoo...

([Door Weight Capacity]: 150lb-220lb, Fit per door panel width: 30", Door panel thickness: 1 3/8" and 1 3/4". It can be paired with wood barn door, glass barn door, MDF barn doors, and more. The nylon roller has undergone 100,000 tests and slides smoothly and NOT INCLUDED.).

eBay